Belt retractor for a safety belt device

A belt retractor (10) for a safety belt device having a belt reel (20) for winding and unwinding the safety belt, a pretensioner drive (40) and a pyrotechnic tensioner drive (30), wherein the pretensioner drive (40) has a force flow control element (100) which in a deactivation position interrupts the force flow between the pretensioner drive (40) and belt reel (20), wherein

• the pyrotechnic tensioner drive (30) has one or more drive elements (33) which after activation of the pyrotechnic tensioner drive (30) are caused to move and,
• the pyrotechnic tensioner drive (30) is a ball tensioner having a large number of drive balls which each form a drive element (33),
• after an activation of the pyrotechnic tensioner drive (30), the force flow control element (100) is directly or indirectly moved into the deactivation position by the drive element (33) or by at least one of the drive elements (33) of the pyrotechnic tensioner drive (30), and
• the force flow control element (100) is moved into the deactivation position by at least one of the drive balls.